I agree, NH. I see what they're getting to upgrade to Burr Brown OPA 627's, an arm and a leg. Interesting, I upgraded my Ah! with 627s for about $50, and then swapped the Burr Browns out for the Upsampler.

In any case, reviewers seem pretty uniform in their praise of Music Hall equipment.

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.